CVE-2026-2394

Received Received - Intake

Buffer Over-read in RTI Connext Professional Core Libraries

Publication date: 2026-04-01

Last updated on: 2026-04-14

Assigner: RTI

Description

Buffer Over-read vulnerability in RTI Connext Professional (Core Libraries) allows Overread Buffers.This issue affects Connext Professional: from 7.4.0 before 7.7.0, from 7.0.0 before 7.3.1.1, from 6.1.0 before 6.1.*, from 6.0.0 before 6.0.*, from 5.3.0 before 5.3.*, from 4.3x before 5.2.*.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-04-01

Last Modified

2026-04-14

Generated

2026-07-06

AI Q&A

2026-04-01

EPSS Evaluated

2026-07-05

NVD

CVE-2026-2394

EUVD

EUVD-2026-17737

Affected Vendors & Products

Vendor	Product	Version / Range
rti	connext_professional	From 5.3.0 (inc) to 5.3.1.45 (inc)
rti	connext_professional	From 6.0.0 (inc) to 6.0.1.40 (inc)
rti	connext_professional	From 6.1.0 (inc) to 6.1.2.27 (inc)
rti	connext_professional	From 7.0.0 (inc) to 7.3.1.1 (exc)
rti	connext_professional	From 7.4.0 (inc) to 7.7.0 (exc)
rti	connext_professional	From 4.3.0 (inc) to 5.2.3 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-126	The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Impact Analysis

This vulnerability can impact you by causing unauthorized memory access or application instability. Exploiting the buffer over-read could lead to crashes, denial of service, or potentially allow attackers to access sensitive information or execute arbitrary code within the affected RTI Connext applications.

Detection Guidance

This vulnerability involves a heap buffer read overflow during XML parsing in RTI Connext applications. Detection would typically require monitoring for abnormal application behavior such as crashes or memory access violations related to XML processing.

No specific detection commands or network signatures are provided in the available information.

Mitigation Strategies

The provided information does not specify immediate mitigation steps such as patches, configuration changes, or workarounds.

Generally, mitigation for buffer over-read vulnerabilities includes updating affected RTI Connext Professional versions to fixed releases beyond the vulnerable versions listed.

Executive Summary

CVE-2026-2394 is a critical security vulnerability in RTI Connext Professional involving a buffer over-read issue. Specifically, it is a heap buffer read overflow that occurs when the application parses an XML type. This means that during XML parsing, the software may read beyond the allocated memory buffer, potentially leading to unauthorized memory access or application instability.

Compliance Impact

The provided information does not specify how the CVE-2026-2394 vulnerability affects compliance with common standards and regulations such as GDPR or HIPAA.

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